3MHO

Crystal structure of human carbonic anhydrase isozyme II with 4-[N-(6-chloro-5-formyl-2-methylthiopyrimidin-4-yl)amino]benzenesulfonamide

X-RAY DIFFRACTION

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Starting Model(s)

Initial Refinement Model(s)
Type	Source	Accession Code	Details
experimental model	PDB	2NNO	PDB ENTRY 2NNO

Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	VAPOR DIFFUSION	9	293	0.1M Na-bicine pH 9, 2M Na-malonate pH 7, 0.2M ammonium sulfate , VAPOR DIFFUSION, temperature 293K

Crystal Properties
Matthews coefficient	Solvent content
2.07	40.58

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 42.13	α = 90
b = 41.211	β = 104.3
c = 72.076	γ = 90

Symmetry
Space Group	P 1 21 1

Diffraction

Diffraction Experiment
ID #	Crystal ID	Scattering Type	Data Collection Temperature	Detector	Detector Type	Details	Collection Date	Monochromator	Protocol
1	1	x-ray	100	CCD	MAR CCD 165 mm	Bent, vertically focussing mirror	2007-12-18	M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	SYNCHROTRON	EMBL/DESY, HAMBURG BEAMLINE X13	0.81	EMBL/DESY, HAMBURG	X13

Data Collection

Overall
ID #	Resolution (High)	Resolution (Low)	Percent Possible (Observed)	R Merge I (Observed)	R Sym I (Observed)	Net I Over Average Sigma (I)	Redundancy	Number Reflections (All)	Number Reflections (Observed)	Observed Criterion Sigma (F)	Observed Criterion Sigma (I)	B (Isotropic) From Wilson Plot
1	1.15	41.211	99.9	0.066	0.066	20.3	6.7	85279	85194			8.522

Highest Resolution Shell
ID #	Resolution (High)	Resolution (Low)	Percent Possible (All)	Percent Possible (Observed)	R Merge I (Observed)	R-Sym I (Observed)	Mean I Over Sigma (Observed)	Redundancy	Number Unique Reflections (All)
	1.15	1.21	99.7		0.323	0.323	4.1	6.1	12339

Refinement

Statistics
Diffraction ID	Structure Solution Method	Cross Validation method	Starting model	Resolution (High)	Resolution (Low)	Number Reflections (All)	Number Reflections (Observed)	Number Reflections (R-Free)	Percent Reflections (Observed)	R-Factor (All)	R-Factor (Observed)	R-Work	R-Free	R-Free Selection Details	Mean Isotropic B
X-RAY DIFFRACTION	MOLECULAR REPLACEMENT	THROUGHOUT	PDB ENTRY 2NNO	1.15	40.83	85175	85175	8562	99.91	0.177	0.177	0.176	0.192	RANDOM	11.419

Temperature Factor Modeling
Anisotropic B[1][1]	Anisotropic B[1][2]	Anisotropic B[1][3]	Anisotropic B[2][2]	Anisotropic B[2][3]	Anisotropic B[3][3]
0.16		0.06	-0.31		0.18

RMS Deviations
Key	Refinement Restraint Deviation
r_dihedral_angle_2_deg	36.051
r_dihedral_angle_4_deg	19.939
r_dihedral_angle_3_deg	10.577
r_dihedral_angle_1_deg	6.175
r_sphericity_free	2.264
r_sphericity_bonded	2.132
r_scangle_it	2.021
r_scbond_it	1.374
r_angle_refined_deg	1.182
r_mcangle_it	1.066
r_rigid_bond_restr	0.873
r_mcbond_it	0.63
r_nbtor_refined	0.309
r_nbd_refined	0.204
r_symmetry_vdw_refined	0.156
r_xyhbond_nbd_refined	0.104
r_symmetry_hbond_refined	0.096
r_metal_ion_refined	0.085
r_chiral_restr	0.082
r_bond_refined_d	0.006
r_gen_planes_refined	0.005

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	2039
Nucleic Acid Atoms
Solvent Atoms	289
Heterogen Atoms	47

Software

Software
Software Name	Purpose
REFMAC	refinement
MOSFLM	data reduction
SCALA	data scaling
PDB_EXTRACT	data extraction
MAR345	data collection
O	model building